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Semiconductor Strength Pushes KOSPI Back Above 7,000 Despite Middle East Oil Spike; Yen Strength and Carry-Trade Unwind Remain a Watch Point

Global · 2026-09-09

Houthi Attack on Saudi Refinery Fuels Oil Price Surge and Fears of Wider Middle East Conflict

International oil prices surged after reports that Yemen's Houthi rebels attacked an Aramco refinery in southern Saudi Arabia. WTI rose about 1.5% from the prior session to $94.47, while Brent climbed more than 1% to around $99.5, nearing the $100 mark. The hosts noted that the significance of this development is considerable given that Saudi Arabia, the world's largest oil producer, was the target.

The attack was interpreted as part of an involvement strategy that draws surrounding Middle Eastern countries that had until now stayed out of the conflict, separate from the direct clash between Iran and the United States. Amid exchanges of attacks between the US and Iran around the Strait of Hormuz, concerns grew that the situation could spiral out of control if the conflict spreads to the area near the Bab-el-Mandeb Strait, the alternate route on the opposite side. The Wall Street Journal reported exclusively that Iran carried out a second attack on a US naval vessel, and over the weekend the US struck an Iranian oil tanker, suggesting that mutual targeting of tankers and refineries by both sides continues.

Deaths were reported at 500 and displaced persons exceeded 20,000, while Iran released footage testing a new missile with extended range and improved precision. According to domestic Iranian reports, Iran is demanding $300 billion in reparations, full removal of sanctions, the return of $100 billion in frozen assets, and the lifting of the naval blockade as conditions for a peace deal with the US, suggesting that reaching an agreement will not be easy.

US Treasury yields, however, showed little reaction to the oil price surge. The 10-year held around 4.8%, and the 20-year and 30-year saw only minor moves near 5.26%, an interpretation read as evidence that the market is treating this Middle East episode as falling within a more predictable range than in the past. Still, concerns were raised that if oil prices stay above $100 for an extended period, the combination of surging winter heating demand and Europe's shortfall in gas stockpiles (currently around 60% versus a normal 85%) could add further upward pressure on prices.

Global Oil Prices Surge, WTI and Brent Both Rise
WTI
94.47달러
Brent
99.5달러
Following the attack on Saudi oil refineries, WTI reached $94.47 while Brent climbed to $99.5, with Brent posting the higher level.

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